The invention relates to a survival rate increasing way for larvae stage of Anodontawoodiana, a kind of freshwater shellfish, using a series of methods to adjust the key physical and chemical indicators of water environment, to overcome the low tolerance of larvae to the pollutants in the environment, to minimize environment impact on freshwater (Anodontawoodiana), to improve the survival rate of larvae of the clam. The invention could be used as reference and strong support to further toxicology studies of young clams, baby clams and other freshwater shellfish survival protection of juvenile clam.